Messages in this thread | | | Date | Thu, 8 Nov 2018 16:55:35 -0800 | From | Andi Kleen <> | Subject | Re: PEBS level 2/3 breaks dwarf unwinding! [WAS: Re: Broken dwarf unwinding - wrong stack pointer register value?] |
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> Can we change this, such that perf_event_output also takes a second set of > registers (iregs) that get sampled for PERF_SAMPLE_REGS_INTR? I'm very new to > real kernel development, what kind of ABI/API stability guarantees exist for > something like "perf_event_output"?
Yes you can change it.
That's no API/ABI stability guarantee for kernel internal functions, as long as you change all callers in tree.
-Andi
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